Valve



Oct. 7 1924.

1,510,528 F. A. SEBENSTE VALVE Filed Feb. 12 192s l N' Z/Q. Z Z3 26j f Z2 Z9 9 m u z ,eff 17 1i 15 Z6 :L- Z6. :25 2 /g O 5 9 7 o if" Z. 13 l?.

Patented Oct. 7, 1924.

STES

y Y 1,510,528 Parar orrica.

FRED A. SEBENSTE, 0F HAMMOND, INDIANA, ASSIGNOR 0F ONE-HALF 10 GEORGE A. CRAWFORD, OF HAMMOND, ILLINOIS.

valve.

Application led February 12, 1923. Serial No. 618,619.

To al! wlwm t may concern.'

Be it known that I, FRED A. SEBENSTE, a citizen of the United States, residin at Hammond, in the county of Lake and tate of Indiana, have invented new and useful Improvements in Valves, of which the following is a specification.

The valve which is the subject matter of the present application for patent has been designed to eii'ectually prevent leakage past t-he same of the fluid which it is to control, and alsoto prevent leakage along the valve stem.

A further object of the invention is to provide a valve which is easy to operate, and simple in construction, its parts being so arranged that they can be readily disconnected for repairs.

The invention also has for its object to provide a valve Vthe closin movement of which is cushioned so that 1t cannot injure the seat by being violently jammed or forced thereagainst.

@ther objects and advantages of the invention will be pointed out in the detailed description appearing hereinafter.

ln order that the invention may be better understood, reference is had to the accompairying drawings, wherein,-

1 the valve, and

Figs. 2, 3, and 4f are cross-sections on the lines 2 2, 3 3 and 4 4, respectively, of

Fig. l.

eferrin specifically to the drawing, 5 denotes a g obe valve casing of conventional design containing a partition 6 dividing the inlet of the casing from the outlet thereof, said partition having a port 7 which latter, when it is open establishes communication between the casing inlet and the outlet, and when closed shuts 0E the flow through the casing.

The valve controlling the port 7 is a plug 8 having a tapered extremity 9 to enter the port, the latter having a correspondin ta er so that a tight closure may be eii'ecte AEdjacent to the tapered extremity of the plug.l the latter is formed with a piston head 10 having a peri heral ggpve in which is mounted a resi ient pac ring 11. That portion of the partition'w ich contains the port 7, is formed on one side of the latter with a dashpot 12 which is adapted to be entered by the. piston head 10 when the re 1 is a central vertical section of valve part 9 starts to enter the port 7, thereby cushioning the closing movement of said part so that it cannot mar or injure the seat y being violently jammed or forced closed. The packing fing 11 is in contact' with the wall of the dash-pot 12 when the valve part 9 is seating in the port 7, which eifectually prevents leakage even if the seating is not perfect. Leakage can occur only when the seating contact of the packing ring with the wall of the dash-pot becomes defective, and the defect can then be readily cured by applying a new ring. Regrinding of valve, which is an expensive job, is not necessary, and a new well-fitting ring again makes the valve leak-proof.

The valve body 8 has a central longitudinal bore 13 which is screw-threaded and receives the threaded inner end 14 of a valve stem 15 having its outer end fitted with a hand wheel or other handle 16. The valve body is non-rotatable, but freely slidable in the direction of its length, whereas the valve stem'is a non-traveling screw. lt will therefore be evident that the valve body is moved to and from seating position by rotating the valve stem in one or the' other direction according to whether the valve is to be seated or unseated.

The valve casing 5 has a bonnet 17 through which the valve stem 15 passes, and where the bonnet is connected to the valve casing, the latter is termedl with a cylindrical chamber 18 oi' which the bonnet is a continuation., The valve body 8 has a cylindrical head 19 which seats slidably in the chamber 18 and also extends partly in the bonnet 17. The head 19 has a pair of peripheral grooves in which are mounted resilient packing rings 2() which are in contact with the wall of the chamber 18 and 'the bonnet 17, for the purpose of preventing leakageof any Huid into the bonnet and past the valve stem 15, so that it will not be necessary to provide a packing for the latter.

. The outer end of the bonnet 17 is; cl, as shown at 21, and also here fitted with a screw cap- 22 which is spaced from said end. The bonnet end 21 and the cap 22 are centrally -apertured to let the valve stem 15 through, and between said parts 21 and 22, the valve stem has an outstanding collar'23 whereby longitudinal travel of the valve stern is revented. Between the collar 2.3 and the I nnet end 21 are in ww antifriction balls 24 to facilitate operation of Y the valve stem, and reduce frictionl and Wear. e

'llo prevent rot-ation of the valve body 8, the head 19 has one or more peripheral seats for a corresponding number of balls 25, which latter extend part-way into longitudinal grooves 26 in the interior surface of .the bonnet 17.

Between the valve body head 19 and the bonnet end 21 is interposed a coiled spring 27. The purpose of this spring is to oonstantl urge the valve stem 15 inwardly, and tiereby maintain. the threaded connee- 'tion between the valve stom and the Valve body 8 firm and tight, without, however, holding it so tight as to make the turning of the valve stem diiiicult. Any lost motion from wear is automatically taken up by the spring.

lin order that the ball-bearing 24 may be lubricated, the. cap 22 has oil holes 28 which register with oil holes 29 in the oollar 23. The packing rings 1l and 20 are provided with peripheral grooves adapted to hold a lubricant, such as hard grease.

Avalve and the seat will not rapidly wear or become leaky.

ll claim:

A. valve com risin la casino containinnr b 2- Aa port, a i'eclp-rocatory non-rotating valve for said port, a rotatable non-traveling valve-operating stem havlng a threaded conneetioni with the valve, abonnetk for the casing,`said bonnet being closed at its outer ond, a oap over said bonnet end, the valve` operatlng stem passing through the bonnetl end and the cap andhaving a collartheref between, and anti-friction balls between the collar and the bonnet end, saidy collar and the cap Yhaving lubricant passageways lead in r to the antl-friction balls.

n testimony whereof ll affix my signature. 50

riant A.. SEBENSTE. 

